2011 VOLVO C70 check engine light

09 Maintenance and servicing
Maintaining your car09

215 Owner maintenance
Periodic maintenance requirements and inter-
vals are described in your vehicle's Warranty
and Service Records Information booklet.
The following points can be carried out
between the normally scheduled maintenance
services.
Each time the car is refueled:
•Check the engine oil level.
•Clean the windshield, windshield wipers,
headlights, and taillights.
Monthly:
•Check cold tire pressure in all tires. Inspect
the tires for wear.
•Check that engine coolant and other fluid
levels are between the indicated "min" and
"max" markings.
•Clean interior glass surfaces with a glass
cleaner and soft paper towels.
•Wipe driver information displays with a soft
cloth.
•Visually inspect battery terminals for cor-
rosion. Corrosion may indicate a loose ter-
minal connector, or a battery near the end
of its useful service life. Consult a trained
and qualified Volvo service technician for
additional information.
As needed:
•Wash the car, including the undercarriage,
to reduce wear that can be caused by a
buildup of dirt, and corrosion that can be
caused by salt residues.
•Clean leaves and twigs from air intake
vents at the base of the windshield, and
from other places where they may collect.
NOTE
Complete service information for qualified
technicians is available online for purchase
or subscription at www.volvotechinfo.com.
Hoisting the vehicle
If a garage jack is used to lift the vehicle, the
two jack attachments points should be used.
They are specially reinforced to bear the weight
of the vehicle. A garage jack can also be placed
under the front of the engine support frame.
Take care not to damage the splash guard
under the engine. Ensure that the jack is posi-
tioned so that the vehicle cannot slide off it.
Always use axle stands or similar structures.
If a two-post hoist is used to lift the vehicle, the
front and rear lift arm pads should be centered
under the reinforced lift plates on the inboard
edge of the sill rail (see illustration).
Emission inspection readiness
What is an Onboard Diagnostic System
(OBD II)?
OBD II is part of your vehicle's computerized
engine management system. It stores diagnos-
tic information about your vehicle's emission
controls. It can light the Check Engine light
(MIL) if it detects an emission control "fault." A
"fault" is a component or system that is not
performing within an expected range. A fault
may be permanent or temporary. OBD II will
store a message about any fault.

09 Maintenance and servicing
Maintaining your car 09
216
How Do States Use OBD II for Emission
Inspections?
Many states connect a computer directly to a
vehicle's OBD II system. The inspector can
then read "faults." In some states, this type of
inspection has replaced the tailpipe emission
test.
How Can My Vehicle Fail OBD II Emission
Inspection?
Your vehicle can fail OBD II emission inspec-
tion for any of the following reasons.
•If your Check Engine (MIL) light is lit, your
vehicle may fail inspection.
•If your vehicle's Check Engine light was lit,
but went out without any action on your
part, OBD II will still have a recorded fault.
Your vehicle may pass or fail, depending
on the inspection practices in your area.
•If you had recent service that required dis-
connecting the battery, OBD II diagnostic
information may be incomplete and "not
ready" for inspection. A vehicle that is not
ready may fail inspection.
How Can I Prepare for My Next OBD II
Emission Inspection?
•If your Check Engine (MIL) light is lit – or
was lit but went out without service, haveyour vehicle diagnosed and, if necessary,
serviced by a qualified Volvo technician.
•If you recently had service for a lit Check
Engine light, or if you had service that
required disconnecting the battery, a
period of driving is necessary to bring the
OBD II system to "ready" for inspection. A
half-hour trip of mixed stop-and-go/high-
way driving is typically needed to allow
OBD II to reach readiness. Your Volvo
retailer can provide you with more infor-
mation on planning a trip.
•Maintain your vehicle in accordance with
your vehicle's maintenance schedule.

09 Maintenance and servicing
Battery 09
224
Battery maintenance
Driving habits and conditions, climate, the
number of starts, etc., all affect the service life
and function of the battery. In order for your
battery to perform satisfactorily, keep the fol-
lowing in mind:
Check the fluid level in each cell in the battery
every 24 months or every 15,000
1 miles
(24,000 km), whichever is sooner.
•Use a screw driver to open the caps or
cover and a flashlight to inspect the level.
•If necessary, add distilled water. The level
should never be above the indicator.
•The fluid level should be checked if the
battery has been recharged.
•After inspection, be sure the cap over each
battery cell or the cover is securely in
place.
•Check that the battery cables are correctly
connected and properly tightened.
•Never disconnect the battery when the
engine is running, or when the key is in the
ignition. This could damage the vehicle's
electrical system.
•The battery should be disconnected from
the vehicle when a battery charger is used
directly on the battery.
•To help keep the battery in good condition,
the vehicle should be driven for at least 15
minutes a week or connected to a charger
with an automatic charging function.
•If the battery is fully discharged a number
of times, this may shorten its service life.
Keeping the battery fully charged helps
prolong its service life.
•The service life of a battery is affected by
factors such as driving conditions and cli-
mate. Extreme cold may also further
decrease the battery’s starting capacity.
•Because the battery’s starting capacity
decreases with time, it may be necessary
to recharge it if the vehicle is not driven for
an extended period of time or if the vehicle
is usually only driven short distances.
•
WARNING
PROPOSITION 65 WARNING!
Battery posts, terminals, and related acces-
sories contain lead and lead compounds,
chemicals known to the state of California
to cause cancer and reproductive harm.
Wash hands after handling.
Battery symbols
Wear protection goggles
See owner's manual for
details
Keep away from children
Corrosive
1More frequently in warm climates.

12 Index
12
286
Electronic Climate Control
air distribution table.............................. 94
Electronic Climate Control (ECC)............... 91
Emergency brake..................................... 156
Emergency locking retractor...................... 39
Emergency starting.................................. 162
Emergency towing................................... 159
Emission inspection readiness................ 215
Engine
specifications...................................... 275
starting................................................ 147
starting with keyless drive.................. 149
Engine compartment overview................218
Engine oil................................................. 219
changing............................................. 219
checking............................................. 219
specifications...................................... 274
volumes.............................................. 273
Environment............................................... 14
Equalizer, audio system........................... 247
Eyelets for anchoring loads..................... 118F
Federal Clean Air Act............................... 214
Flat tires
changing..................................... 192, 199
repairing with tire sealing system....... 194
Fluids and oils.......................................... 273
FM1/FM2 menu....................................... 248
Fog lights
front...................................................... 65
rear........................................................ 65
Front airbags.............................................. 24
disconnecting passenger’s side airbag 28
Front fog lights........................................... 65
Front seats................................................. 98
accessing the rear seat........................ 98
adjusting the head restraints.............. 104
manually operated................................ 98
power.................................................. 102
Fuel filler door
opening manually................................. 66
unlocking.............................................. 66
Fuel gauge................................................. 54
Fuel requirements.................................... 143
Fuel tank volume.....................................273Fuses, replacing......................................233
G
Gasoline requirements............................. 143
Geartronic................................................ 151
Glossary of tire terminology..................... 185
Glove compartment................................. 114
locking................................................ 133
Gross vehicle weight (GVW)............186, 271
H
Hand brake (parking brake)..................... 156
Hazard warning flashers............................ 75
HD digital radio........................................ 250
Headlights.................................................. 64
Active Bending Lights........................... 64
changing bulbs................................... 226
high and low beams............................. 67
high beam flash.................................... 67
Headlight washers..................................... 73
High beam flash......................................... 67

12 Index
12
287
High beams................................................ 67
Hoisting the vehicle.................................215
Home safe lighting............................... 67, 81
Hood, opening......................................... 217
I
Ignition switch.......................................... 146
Immobilizer.............................................. 147
Immobilizer (start inhibitor)...................... 122
Important information................................ 10
Indicator and warning symbols............ 54, 56
Inflatable Curtain........................................ 33
Inflation pressure..................................... 179
Inflation pressure, checking..................... 179
Inflation pressure table
Canadian models................................ 182
US models.......................................... 181
Information and warning symbols, table
of.............................................................. 280
Information display..............................54, 61
messages in.......................................... 61
Information symbol.................................... 56Inspection, preparing for......................... 215
Inspection readiness................................ 215
Instrument overview.................................. 52
Instrument panel.................................. 52, 54
Instrument panel lighting........................... 65
Interior lighting......................................... 111
iPodŸ connector (audio system)............. 244
ISOFIX/LATCH anchors............................. 47
J
Jack
location of........................................... 192
Jump starting........................................... 162
K
Key (ignition switch) positions................. 146
Key blade.........................................124, 129
Keyless drive
location of antennas (pacemaker warn-
ing)...................................................... 130
locking and unlocking the vehicle...... 128power seat memory............................ 129
starting the engine.............................. 149
Keylock.................................................... 147
Kickdown.................................................151
L
Label information..................................... 268
LATCH (ISOFIX) anchors........................... 47
Lighting panel............................................ 64
Load anchoring eyelets...........................118
Locking
from the inside.................................... 132
glove compartment............................. 133
Locking the vehicle.................................. 128
Long distance trips.................................. 142
Long loads, ski hatch............................... 119
Lug nuts (wheel nuts)............................... 191